Compositions – Magnetic – With wax – bitumen – resin – or gum
Reexamination Certificate
2005-03-29
2005-03-29
Lechert, Jr., Stephen J. (Department: 1732)
Compositions
Magnetic
With wax, bitumen, resin, or gum
C252S062550, C252S062560, C252S062600, C252S062620, C252S062640, C264S109000, C264S122000, C264S123000, C264S126000, C264S437000
Reexamination Certificate
active
06872325
ABSTRACT:
Briefly, in accordance with one embodiment of the present invention, a process for making a magnetic composite which comprises providing a polymeric resin and a magnetic powder, the magnetic powder having a mean particle size with a value for standard deviation that is less than the value for the mean particle size of the said magnetic powder, the said magnetic composite being made by mixing said magnetic powder with said polymeric resin and molding the said mixture into a desired shape and a size and said magnetic composite having a magnetic permeability between 30 and 50. In another embodiment the present invention is a composition for a magnetic composite comprising a polymeric resin and a magnetic powder, the said powder having a mean particle size with a value of standard deviation that is less than the value of the mean particle size of the magnetic powder, wherein said magnetic composite has a magnetic permeability between about 30 and about 50.
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US 2002/0023693 A1—Feb. 28, 2002—Manufacturing Soft Magnetic Components Usinga Ferrous Powder and a Lubricant—Lebebvre, et. al.
Bandyopadhyay Krisanu
Chakrabarti Amit
Tandon Kunj
General Electric Company
Lechert Jr. Stephen J.
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